Improvement in steam-geneeatoes



@uitrit gisten atnt `@frn JEREMIAII DARLING, or CINCINNATI, oHIo.

Letters Patent No. 66,683, dated July 16, 1867.

IMPROVEMENT IN STEAM-GENERATDRS.

TO ALL WI-IOM IT MAY CONCRN:

Be it known that I, JEREMIAII DARLING, of the city of' Cincinnati, Hamilton county, State of Ohio, have invented a new and improved Steam-Boiler; and 4I do hereby declare the following to be an exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon,

making n. part of this specification.

The nature ot` my invention consists in the arrangement and construction of posts supporting a dome or boiler at top, the'posts or columns containing water and steam, with water and steam pipes connected with the postsand the dome and nre-place underneath, the whole forming a safe steam-boiler.

`Figure 1 represents a side elevation of the improved steam-boiler.

Figure 2,' a cross-section of the same.

Figure 3 exhibits one of the Octagon-shaped columns or posts containing water and steam, and forming each corner of thelire-box, and support-ing the stenm-dome or boiler at top. This column has pipes attached, whose ends are tapering,- as seen at fig. 7; and there are two such columns located diagonally to each other across the tire-box. i i

Figure 4 exhibits asimilar column, but having the pipes with screw-ends (not tapering) attached.V There are Atwo of these col'umns or posts, iig. 4, also located `diagonally across the fire-box and likewise supporting the dome.

Figure 5 shows` the shape or elbow-top of the column or post, and its position as attached to the dome.` Figure 6 represents the Octagon shape ot' each column or post as attached to the elbow, when looking at it upside down.

Figures 7 and 8 represent the side and end horizontal pipes forming the tiro-box and attached tothe columns or posts, tig. 7, having one end smooth and tapering, so as to fit in the smooth socket of fig. 3, while the other end has a screw-thread to screw into, tig. 4; and iig. 8 has screwthreads on both ends, cut right and left, to fit into both posts, as' shown in figs. 3 and 4.

A represents the fire-place; B the grate; C the steam-dome or boiler; D the smoke-stack; E the steam pipe; G Gr are -the four posts or column-s that support the dome, and in which the pipes are inserted and form the'tire-box. Four, or more posts may be used if necessary. The outside pipes H, as shown at tig. 8, have screw-threads at 'their ends, one a right and the other a left-hand screw, for the purpose of drawing the posts G tight together upon the pipe J that is tapered at one end, said pipe J being first screwed into the opposite post G, and the tapering end fitting itself tightly into the smooth socket of the other post Gr as the posts are being screwed together. To make the pipes yperfectly tight, to prevent leakage, the loose pipes J are Vscrewed back until the tapering ends are pressed up to their bearing in the opposite post G, which makes both ends tight. Inside of -the outside pipes, and inside of the {ire-box, over the tire, are coils of' extra pipes, K, four, more or less, that connect with or start from the posts Gr, inclining upward and connecting with the posts G or with the steam-dome C above, on 'the sides of the dome. Other pipes L start from and out of posts G, and also enter the sides of the steam-dome C. i

The water passes from the posts-G, at either end of the horizontal pipes J and H, (according to the hori i zontal position of the boi1er,-) during the.rocking niotion of the boiler, the water passing in the pipes at the 'lower end and the steam out at the upper end. The water is first put into the steam-dome C, and from thence lls the'columns G; or the water may be forced int'o'the columns G, or into any of the pipes, to supply the boiler. v

One advantage gained is, that my short pipes will not blow out dry and leave them subject to burn, as frequently occurs with long pipes o1 coils heretofore used. Another advantage is, my inside pipes inclining upwards are not atected by any rocking motion of the boiler. Another advantage is, that my dome, being ot' small diameter and greater distance from the tire,-is less liable to'eXplosion than larger boilers; and at the same time I have a.' small dome and larger boiler, by the use of my pipes, oncentrated over the fire, as arranged and combined with-the columns Cf, and requiring much less room, less fuel, and less {ire-place to make the same-amount of steam.' l v M are blow-oif cocks attached to the steam and water"`eolumns Gr forthe purpose of cleaning the columns when necessary` What I claim' as new, and desire to secure lby Letters Potent, is 1. The steam and water columns G, when constructed and arranged as and for the purposes set forth.V l2. I also claim the pipes J, when arranged with reference to the columns G as herein described and for the purposes set forth.

'3. I also claim the coil or incline pipes K, when arranged and combined with the posts G and dome C, as i herein described and for the purposes setforth.

JEREMIAH DARLING.

Witnesses: J. FRANKLIN REIGAT, JOHN A. FULLY. 

